Effect of Calcium Carbonate Content on the Mechanical and Thermal Properties of Chitosan-Coated Poly(urethane) Foams

In this work, the effect of chitosan and CaCO3 coating on polyurethane (PU) foam mechanical thermal properties was studied. PU-foams were soaked in a mixture chitosan- calcium carbonate solution at different concentrations, i.e., 0.1–0.4%. The molecular behaviors due to incorporation chitosan/CaCO3 into PU-foam matrix investigated by Fourier-Transform Infrared (FTIR) spectroscopy. Field Emission Scanning Electron Microscope (FE-SEM) utilized study coat pore structure PU-foam. FTIR spectra show changes peak 1446 1413 cm–1, which serve as evidence interaction between PU chitosan/CaCO3. FE-SEM images that addition chitosan/calcium cells starting close together, probably increased dispersion entire surface PU-foams/chitosan, indicates reducing size cell will increase properties. From study, it found 0.4% had highest tensile strength. Coating with also improved its stability, indicated an residual mass compared neat